1992. Federal Highway Administration, Office of Intermodal and Statewide Programs (HEPS-20). The National Highway Planning Network is a comprehensive network database of the nation's major highway system. It consists of over 400,000 miles o... Bureau of Transportation Statistics.
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2010. California. Department of Transportation. This point shapefile contains traffic volume (also known as traffic counts) on California's state highway network created from 2010 Average Annual ... California. Department of Transportation.
2012. Pribyl, Cindy and California. Department of Transportation. This point shapefile contains traffic volume (also known as traffic counts) on California's state highway network created from 2012 Average Annual ... California. Department of Transportation.
2013. Pribyl, Cindy and California. Department of Transportation. This point shapefile contains traffic volume (also known as traffic counts) on California's state highway network created from 2013 Average Annual ... California. Department of Transportation.
2014. California. Department of Transportation. This point shapefile contains traffic volume (also known as traffic counts) on California's state highway network created from 2014 Average Annual ... California. Department of Transportation.
